Recrystallization texture and shear band formation in bending

Hiroshi Kaneko, Tatsuya Morikawa, Masaki Tanaka, Hirofumi Inoue, Kenji Higashida

Research output: Contribution to journalArticle

Abstract

The influence of texture on the shear bands and workability in bending was examined by using an age-hardened polycrystalline high concentration of Ni-Si copper alloys with various recrystallization textures. Samples with dominant the Cube orientation of {001}〈100〉, the RD-rotated Cube orientation of {012}〈100〉, the BR orientation of {362}〈853〉, and the R orientation of {231}〈346〉 were employed. The formation of shear bands and the bending workability depended on the texture in the W-shape bending test, in which the bending direction was RD. The sample with a strongly developed Cube orientation showed the best bending workability. In comparison, the samples with the developed BR orientation and random orientation showed poor bending workability. The shape of the cracks generated by bending was linear, and these cracks developed in the shear bands, which were inclined at 35-40° from the surface. To elucidate the mechanism behind shear band formation, inhomogeneous deformations were investigated using the FE-SEM/EBSD method. The dependence on the crystallographic orientations was discussed using the full constraint Taylor model premising both the plane strain compression and the shear strain modes.

Original languageEnglish
Pages (from-to)218-224
Number of pages7
JournalMaterials Transactions
Volume58
Issue number2
DOIs
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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